Tides Today & Tomorrow in Bay Shore, NY

TIDE TIMES for Thursday, July 30, 2026
The tide is currently rising in Bay Shore, NY.
Next low tide : 5:40 pm (0.3 ft)
Next high tide : in 4h 59m at 11:21 am (1.0 ft)
Sunset today : 8:10 pm
Sunrise tomorrow : 5:48 am
Moon phase : Full Moon (99% illuminated)
Tide Station Location : Station #8515102
Common Questions About Tides

Bay Shore, NY Tides - Dec 1969

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon2:560.82:470.98:410.59:380.36:574:26Third Quarter1Mon
2Tue3:420.93:350.99:490.510:320.36:584:26Third Quarter2Tue
3Wed4:280.94:250.910:570.411:230.26:594:26Third Quarter3Wed
4Thu5:161.05:200.911:560.37:004:25Waning Crescent4Thu
5Fri6:071.06:200.912:100.212:500.27:014:25Waning Crescent5Fri
6Sat6:581.17:170.912:560.11:410.17:024:25Waning Crescent6Sat
7Sun7:471.28:091.01:420.02:320.07:034:25Waning Crescent7Sun
8Mon8:341.38:591.02:290.03:24-0.17:044:25New Moon8Mon
9Tue9:211.39:491.03:20-0.14:16-0.27:054:25New Moon9Tue
10Wed10:101.310:411.04:13-0.15:08-0.27:064:25New Moon10Wed
11Thu11:031.311:371.05:06-0.15:58-0.37:064:25Waxing Crescent11Thu
12Fri11:591.35:59-0.16:47-0.27:074:25Waxing Crescent12Fri
13Sat12:381.012:591.26:520.07:39-0.27:084:26Waxing Crescent13Sat
14Sun1:401.01:591.17:510.08:35-0.17:094:26First Quarter14Sun
15Mon2:401.02:571.18:580.19:35-0.17:094:26First Quarter15Mon
16Tue3:371.03:521.010:090.210:340.07:104:26First Quarter16Tue
17Wed4:321.04:481.011:160.211:290.07:114:27First Quarter17Wed
18Thu5:271.15:470.912:160.17:114:27Waxing Gibbous18Thu
19Fri6:231.16:460.912:200.01:100.17:124:27Waxing Gibbous19Fri
20Sat7:151.17:390.91:070.01:590.07:134:28Waxing Gibbous20Sat
21Sun8:021.18:270.91:520.02:460.07:134:28Waxing Gibbous21Sun
22Mon8:441.19:110.92:350.03:310.07:144:29Full Moon22Mon
23Tue9:231.19:530.93:190.04:140.07:144:29Full Moon23Tue
24Wed10:021.110:340.94:020.14:550.07:144:30Full Moon24Wed
25Thu10:391.111:160.94:440.15:340.07:154:31Full Moon25Thu
26Fri11:171.011:580.95:230.16:100.07:154:31Waning Gibbous26Fri
27Sat11:541.06:000.16:450.07:154:32Waning Gibbous27Sat
28Sun12:420.812:321.06:370.27:190.17:164:33Waning Gibbous28Sun
29Mon1:260.81:120.97:150.37:540.17:164:33Waning Gibbous29Mon
30Tue2:100.81:570.97:590.38:340.17:164:34Third Quarter30Tue
31Wed2:520.92:440.98:560.39:220.27:164:35Third Quarter31Wed
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8515102)

Common Questions About Bay Shore, NY Tides

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What time does the tide turn (slack tide) in Bay Shore, NY today?

Slack tide in Bay Shore, NY is approximately 2:30 pm — midway between the next high and low tide, when tidal current is weakest. This is the preferred window for boat crossings, underwater visibility, and fishing in areas with strong currents.

Is this week a spring tide or neap tide in Bay Shore, NY?

Bay Shore, NY is currently in a spring phase. Tonight's moon is 99% illuminated. Spring tides (largest swings) occur near new and full moons; neap tides (smallest swings) occur near first and third quarter moons. Tidal ranges this week are near their weekly maximum.

What datum are Bay Shore, NY tide heights measured from?

Tide heights on this page are measured from Mean Lower Low Water (MLLW), the U.S. NOAA standard. A height of 0 ft represents the 19-year average of each day's lower low tide. Negative values indicate a "minus tide" — water levels below that long-term reference.

What factors can affect the tide predictions for Bay Shore, NY?

Tide predictions for Bay Shore, NY come from NOAA's harmonic analysis and are typically accurate within about ±10 minutes on timing and ±0.5 ft on height. Actual water levels can deviate further due to sustained winds, atmospheric pressure changes, river flow, and storm surge. During major weather events, be sure to check US Harbors weather pages for factors that could impact tidal predictions.

Which NOAA station provides tide data for Bay Shore, NY?

Tide data for Bay Shore, NY is sourced from NOAA Station #8515102. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8515102.

What is the moon phase in Bay Shore, NY tonight?

Tonight the moon over Bay Shore, NY is Full Moon (99% illuminated). This places Bay Shore, NY in a spring tide cycle, so tidal ranges are near their weekly maximum this week.

US Harbors Tidal Data

The data in our tide charts, tide tables, and tide graphs is provided by NOAA and others. These predictions are derived mathematically from numerous inputs, including data from historical tide stations and nearby locations where sensors are actively recording. As shown in the tide graph at the top of this page, “Predicted” tides (blue) are what forecasting models expect to happen. “Observed” tides (red) are those recorded by local sensors in real time, overlaid on the predictions for direct comparison. We display Observed water levels for a select group of harbors including Portland, Maine, where a physical sensor monitors water levels in real time.

LEARN MORE ABOUT OUR TIDE DATA